In a Multicast pattern, what is the role of the receivers?

In a Multicast pattern, the main function of the receivers is to receive messages without sending responses back to the sender. This pattern is used for scenarios where a message needs to be broadcasted to multiple endpoints at once. Each receiver processes the message independently and typically does not communicate back with the original sender, following a one-way communication model.

This design allows for scalability and loose coupling among components in an integration workflow. By not sending responses back, the receivers can focus solely on processing the incoming messages effectively, enabling high throughput in message distribution across multiple listeners.

The other options imply a level of interaction or response mechanism that is not characteristic of the Multicast pattern, as it fundamentally emphasizes the sending of a single message to multiple receivers without expecting any replies.